Socionext
A Yokohama-based fabless semiconductor company formed in 2015 from the system LSI businesses of Fujitsu and Panasonic, designing custom SoCs that are manufactured at TSMC.
ソシオネクスト・Chipmakers, foundries and OSATs・Last updated: October 27, 2026
Overview
Socionext is headquartered in Yokohama. It was formed by combining the system LSI design businesses of Fujitsu and Panasonic and does not own fabs.
It designs custom SoCs for imaging, networking, automotive and AI applications, and has its chips manufactured by TSMC on advanced process nodes.
Business: Fabless custom SoC design
Why it matters
- Custom SoC design lets system makers get chips built on leading-edge nodes without their own design teams for each node.
- Socionext is one of the main Japanese customers for leading-edge foundry capacity.
Main products
- •Custom SoCs (ASICs)
- •Image processing SoCs
- •Networking and data centre SoCs
Sites in Japan
Head officeHeadquarters
Yokohama, Kanagawa